The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Dec. 06, 2022
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventors:
Shunya Nagata, Tokyo, JP;
Jun Matsushima, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/418 (2006.01); G11C 29/12 (2006.01);
U.S. Cl.
CPC ...
G11C 29/12005 (2013.01); G11C 11/418 (2013.01); G11C 2029/1202 (2013.01); G11C 2029/1204 (2013.01);
Abstract
In an SRAM circuit mounted in a semiconductor device, power supply voltage reduction circuits generate reduction voltage obtained by reducing an external power supply voltage. A first power supply voltage selection circuit selects one of the external power supply voltage and the reduction voltage as a drive voltage supplied to a word line driver. A second power supply voltage selection circuit selects one of the external power supply voltage and the reduction voltage as a voltage of a power supply line supplying an operating voltage to a memory cell.